private void WriteCount(SequentialFileWriter indexFile, int count)
{
byte[] buffer = new byte[4];
buffer[0] = (byte)(count);
buffer[1] = (byte)(count >> 8);
buffer[2] = (byte)(count >> 16);
buffer[3] = (byte)(count >> 24);
indexFile.Write(buffer, 0, buffer.Length);
}
private void OpenFiles()
{
itemData = new SequentialFileWriter(World.ItemDataPath, metrics);
itemIndex = new SequentialFileWriter(World.ItemIndexPath, metrics);
mobileData = new SequentialFileWriter(World.MobileDataPath, metrics);
mobileIndex = new SequentialFileWriter(World.MobileIndexPath, metrics);
guildData = new SequentialFileWriter(World.GuildDataPath, metrics);
guildIndex = new SequentialFileWriter(World.GuildIndexPath, metrics);
WriteCount(itemIndex, World.Items.Count);
WriteCount(mobileIndex, World.Mobiles.Count);
WriteCount(guildIndex, BaseGuild.List.Count);
}
public int CommitTo(SequentialFileWriter dataFile, SequentialFileWriter indexFile, int typeCode, int serial)
{
Flush();
byte[] buffer = stream.GetBuffer();
int length = (int)stream.Length;
long position = dataFile.Position;
dataFile.Write(buffer, 0, length);
if (indexBuffer == null)
{
indexBuffer = new byte[20];
}
indexBuffer[0] = (byte)(typeCode);
indexBuffer[1] = (byte)(typeCode >> 8);
indexBuffer[2] = (byte)(typeCode >> 16);
indexBuffer[3] = (byte)(typeCode >> 24);
indexBuffer[4] = (byte)(serial);
indexBuffer[5] = (byte)(serial >> 8);
indexBuffer[6] = (byte)(serial >> 16);
indexBuffer[7] = (byte)(serial >> 24);
indexBuffer[8] = (byte)(position);
indexBuffer[9] = (byte)(position >> 8);
indexBuffer[10] = (byte)(position >> 16);
indexBuffer[11] = (byte)(position >> 24);
indexBuffer[12] = (byte)(position >> 32);
indexBuffer[13] = (byte)(position >> 40);
indexBuffer[14] = (byte)(position >> 48);
indexBuffer[15] = (byte)(position >> 56);
indexBuffer[16] = (byte)(length);
indexBuffer[17] = (byte)(length >> 8);
indexBuffer[18] = (byte)(length >> 16);
indexBuffer[19] = (byte)(length >> 24);
indexFile.Write(indexBuffer, 0, indexBuffer.Length);
stream.SetLength(0);
return(length);
}
private Task StartCommitTask(BlockingCollection <QueuedMemoryWriter> threadWriter, SequentialFileWriter data, SequentialFileWriter index)
{
Task commitTask = Task.Factory.StartNew(() =>
{
while (!(threadWriter.IsCompleted))
{
QueuedMemoryWriter writer;
try
{
writer = threadWriter.Take();
}
catch (InvalidOperationException)
{
//Per MSDN, it's fine if we're here, successful completion of adding can rarely put us into this state.
break;
}
writer.CommitTo(data, index);
}
});
return(commitTask);
}
public void CommitTo(SequentialFileWriter dataFile, SequentialFileWriter indexFile)
{
this.Flush();
int memLength = (int)_memStream.Position;
if (memLength > 0)
{
byte[] memBuffer = _memStream.GetBuffer();
long actualPosition = dataFile.Position;
dataFile.Write(memBuffer, 0, memLength); //The buffer contains the data from many items.
//Console.WriteLine("Writing {0} bytes starting at {1}, with {2} things", memLength, actualPosition, _orderedIndexInfo.Count);
byte[] indexBuffer = new byte[20];
//int indexWritten = _orderedIndexInfo.Count * indexBuffer.Length;
//int totalWritten = memLength + indexWritten
for (int i = 0; i < _orderedIndexInfo.Count; i++)
{
IndexInfo info = _orderedIndexInfo[i];
int typeCode = info.typeCode;
int serial = info.serial;
int length = info.size;
indexBuffer[0] = (byte)(info.typeCode);
indexBuffer[1] = (byte)(info.typeCode >> 8);
indexBuffer[2] = (byte)(info.typeCode >> 16);
indexBuffer[3] = (byte)(info.typeCode >> 24);
indexBuffer[4] = (byte)(info.serial);
indexBuffer[5] = (byte)(info.serial >> 8);
indexBuffer[6] = (byte)(info.serial >> 16);
indexBuffer[7] = (byte)(info.serial >> 24);
indexBuffer[8] = (byte)(actualPosition);
indexBuffer[9] = (byte)(actualPosition >> 8);
indexBuffer[10] = (byte)(actualPosition >> 16);
indexBuffer[11] = (byte)(actualPosition >> 24);
indexBuffer[12] = (byte)(actualPosition >> 32);
indexBuffer[13] = (byte)(actualPosition >> 40);
indexBuffer[14] = (byte)(actualPosition >> 48);
indexBuffer[15] = (byte)(actualPosition >> 56);
indexBuffer[16] = (byte)(info.size);
indexBuffer[17] = (byte)(info.size >> 8);
indexBuffer[18] = (byte)(info.size >> 16);
indexBuffer[19] = (byte)(info.size >> 24);
indexFile.Write(indexBuffer, 0, indexBuffer.Length);
actualPosition += info.size;
}
}
this.Close(); //We're done with this writer.
}
